Combined wood and straw burning heating and cooking stove



(No Model.) 2 Sheets-Sheet, 1.

S. B. PALMER.

GOMBINBDWOOD AND STRAW BURNING HEATING AND COOKING STOVE.

No. 602,998. PatentedApr. 26, 189.8.-

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(No Model.) 2 Sheets-Sheet 2.

s. B. PALMER. COMBINED WOOD AND STRAW BURNINGHBATING AND COOKING STOVE.

No. 602,998. Patented Apr. 26, 1898.

. D, the latter having an opening with a de- UNITED STATES Parana @rrrcn.

SAMUEL B. PALMER, OF LOCKHART, MINNESOTA.

COMBINED WOOD AND STRAW BURNING HEATING AND COOKING STOVE.

SPECIFICATION forming part of Letters Patent No. 602,998, dated April 26, 1898. Application filed May 25, 1897. Serial No. 638,153. (No model.)

To aZZ whom it may concern:

Be it known that I, SAMUEL B. PALMER, a citizen of the United States, residing at Lochhart, in the county of Norman and State of Minnesota, have made certain new and useful Improvements in a Combined Wood and Straw Burning Heating and Cooking Stove, of which the following is a specification.

This invention relates to that class of stoves in which straw, hay, or similar material is adapted to be employed as fuel and in which wood or coal may also be employed; and the invention consists in the construc tion, combination, and arrangement of parts, as hereinafter shown and described, and specifically pointed out in the claims.

In the drawings, Figure 1 is a longitudinal sectional elevation. Fig. 2 is a front elevation with the draft-valve in cross-section on the line y y of Fig. 1. Fig. 3 is a plan view of the stove complete, with the baking-oven and cooking-top attached. Fig. 4. is a view similar to Fig. 1, illustrating the modification necessary to be made when the stove is employed as a heater only. Fig. 5 is a crosssection of the fuel-drum, showing the litterretaining valves closed; and Fig. 6 is asimilar view showing the litter-retaining valves open. Fig. 7 is a plan view, and Fig. 8 is a longitudinal sectional elevation, illustrating the modifications necessary to be made when two or more of the fuel-chambers are employed in connection with one combustionchamber. Fig. 9 is longitudinal section on the line m m of Fig. 1.

.A' is the base, which may be of any suitable construction and on which a chamber or casing A preferably cylindrical, is supported, and with an annular top A the latter having an upwardly-projecting rim or flange b, as shown, around the opening in its top. Resting upon this rim 1) is another annular rim or plate A also with an upwardly-projecting rim or flange b 13 is an annular frame resting upon the top A and adapted to support the fuel-magazine pending conical flange e, fitting closely into in Figs. 1 and 4.

E is a conical chamber within the chamber A and fitting by its upper edge within the flange b and with an ash-pan E connected to its lower edge by bars a, so that aspace is left all around the lower edge of the conical chamber and between it and the ash-pan, as indicated by the arrows in Figs. 1, 4, and 8.

When the annular frame A and the fuelmagazine D are removed, the conical combustion-chamber E and its connected ashpan E can be lifted out, which will be done when the ashes are to be removed. The plate A thus acts as a reducing-collar to enable the smaller opening in the f uel-magazine to be adapted to the combustion-chainher.

(1' represents the draft-inlet in the form of a closed sleeve and connected into the front of the chamber A and provided with a ring d having perforationsadapted to register with similar perforations in the sleeve d, so as to regulate the amount of air admitted to the chamber. A similar perforated draftsleeve 9' and perforated collar g are shown connected into the fuel-magazine D, through which the fire will be first applied to the fuel and the draft afterward regulated thereby.

F is the oven, connected to the chamber A by the passage F and with the usual damper F and flue-passages F and smoke-exit F Opposite the passage F a damper E -is arranged in the conical chamber E to provide for a direct draft into the passage F when required, as hereinafter explained.

Surrounding the conical chamber E and filling the space between the inner chamber E and the outer chamber A isa deflecting-ring G, having its front wanting at h, as shown in Figs. 1 and 9, to cause all the products of the combustion to travel around to the front of the chamber A before escaping by the passage F to retard the smoke and flame and increase the radiation. I have shown this deflecting-plate only in Figs. 1 and 9, as it may be employed or not, as required.

In Fig. 1 I have shown the passage F leading directly to the smoke-exit flue F and without the direct-draft damper ll and the deflecting-plate G, as these may be dispensed with under certain conditions.

In using the device the magazine D is re- 7 moved and filled with the straw or hay at the pile or stack and then placed in position upon the combustion-chamber, and in doing this means must be provided for temporarily closing the opening in the bottom of the fuel-- magazine, so as to prevent the escape of litter or ashes.

. In Figs. 1, 5, and 6 I have shown the manner of constructing the closing-valves for this I purpose, which consists of two leaves H H other way, as in Fig. 5.

pivoted at H and adapted to slide one over the other back out of the way when the opening is to be uncovered, as in Fig. 6, and com pletely cover the opening when turned the with a rod or strap 2", underneath which the outer end i of the leaf II moves, so that when the operating-rod H (which is pivoted by its inner end at t to the leaf H and passes out through the side of the magazine D) is drawn outward the leaf Hwill: be moved backward until the projection 71 reaches the end i of the strap 71,when the second section II will be picked up and carried along with the section II and the opening uncovered, as in Fig. 6.

tion takes place.

tively small fuel-magazine, as by using the I two leaves H 11 they can be folded back into when the magazine is to be removed the leaves H II will be closed, so as to prevent the escape of any ashes or cinders, and then after being filled at the stack or straw-pile the leaves will be again closed until after the magazine is in position on the combustion-chamber. By this means no litter will escape upon the floor of the house. A guide-strap serves to keep the two leaves in proper position when the magazine is overturned in filling. After the fuel-magazine is in position and the fire applied through the draft-sleeve g the latter will be closed and the draft admitted thereafter entirely through the draft-sleeve d.

The fire first runs up around the outer edge- The leaf H is formed the smoke-flue. I By this means a perfect combustion is secured and the economy thereby greatly increased.

' In Figs. '7 and SI have shown three of the removal, the conical chamber E, with the ashpan E attached, can be lifted out bodily throughthe top A as will be readily understood by reference to the drawings and as before stated.

W'hen the conical chamber and ash-pan are removed anda cover placed over the top A the stove can be employed in the ordinary manner with wood'orcoal asa'fuel.

Having thus described my invention, what I claim as new is- 1. In a stove,a casing from which the smokeflue leads, and with an opening. in its top, a fuel-magazinesupported upon said casing and with an opening in its bottom registering with the opening in said casing, and a conical combustion-chamber supported in said casing and down through and around which the prod nets of combustion pass, substantially as and for the purpose set forth.

2. In a stove,a casing from which the smokeflue leads and with an opening in its top, a fuel-magazine supported upon said casing and with an opening in its bottom registering with the opening in said casing, a conical combustion-chamber supported in said casing and down through and around which the products of combustion pass, and a deflecting-plate between said casing and combustion-chamber, to retard the products of combustion, and increase the radiating-surface, substantially as set forth.

3. In a stove, a casing having an opening in the top surrounded by an upwardly-projecting rim 1), an annular plate A surmounting said opening and with a flange on its lower side embracing said rim b, said annular plate having an upwardly-projecting rim 19 a frame B supported upon said casing, and a fuel-magazine supported upon said frame B, and with a bottom opening registering with said rim 6 substantially as and for the purpose set forth.

4. In a straw-burning stove the fuel-magazine having an opening in the bottom, a wingvalve section II pivoted to be moved to partially project across said opening, a wingvalve section H pivoted to be moved to partially project across said opening, and means for coupling said wing-valve sections, whereby when one section has reached a certain predetermined point in its movement it will engage the other section and move it forward until the said opening is fully covered, substantially as and for the purpose set forth.

5. In a straw-burnin g stove, a casing, a fueltoo magazine communioatingtherewith, aconicztl my hand in the presence of two subscribing combustion-chamber supported removably in witnesses. said casing, and an ash-pan suspended from T and adapted to be removed with said conical SAME EL PALMER 5 combustion-chamber, substantiallyas and for In presence ofthe purpose set forth. ELLA. C. PALMER,

In testimony whereof I have hereunto set INEZ F. PALMER. 

